Home / 29,081.44-40,144.48-19,662.72

Finding the Fourth Proportional to 29,081.44, 40,144.48 and 19,662.72

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Solution

The fourth proportional to 29,081.44, 40,144.48 and 19,662.72 is: 27,142.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,081.44 : 40,144.48 = 19,662.72 : x
  2. Step 2: Convert to fraction form
    29,081.44/40,144.48 = 19,662.72/x
  3. Step 3: Cross multiply
    29,081.44x = 40,144.48 × 19,662.72
  4. Step 4: Simplify right side
    29,081.44x = 789,349,669.79
  5. Step 5: Solve for x
    x = 789,349,669.79/29,081.44
  6. Step 6: Final answer
    x = 27,142.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.